Body size and physical activity in relation to incidence of chronic obstructive pulmonary disease

Department of Epidemiology and Preventive Medicine (Behrens, Leitzmann), University of Regensburg, Regensburg, Germany; Division of Cancer Epidemiology and Genetics (Matthews, Moore), National Cancer Institute, National Institutes of Health, US Department of Health and Human Services, Bethesda, Md.; AARP (Hollenbeck), Washington, DC

Department of Epidemiology and Preventive Medicine (Behrens, Leitzmann), University of Regensburg, Regensburg, Germany; Division of Cancer Epidemiology and Genetics (Matthews, Moore), National Cancer Institute, National Institutes of Health, US Department of Health and Human Services, Bethesda, Md.; AARP (Hollenbeck), Washington, DC

Department of Epidemiology and Preventive Medicine (Behrens, Leitzmann), University of Regensburg, Regensburg, Germany; Division of Cancer Epidemiology and Genetics (Matthews, Moore), National Cancer Institute, National Institutes of Health, US Department of Health and Human Services, Bethesda, Md.; AARP (Hollenbeck), Washington, DC

Department of Epidemiology and Preventive Medicine (Behrens, Leitzmann), University of Regensburg, Regensburg, Germany; Division of Cancer Epidemiology and Genetics (Matthews, Moore), National Cancer Institute, National Institutes of Health, US Department of Health and Human Services, Bethesda, Md.; AARP (Hollenbeck), Washington, DC

Department of Epidemiology and Preventive Medicine (Behrens, Leitzmann), University of Regensburg, Regensburg, Germany; Division of Cancer Epidemiology and Genetics (Matthews, Moore), National Cancer Institute, National Institutes of Health, US Department of Health and Human Services, Bethesda, Md.; AARP (Hollenbeck), Washington, DC